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E. HEYDON. CROSS ARM SUPPORT FOR POLES.

APPLICATION mm APR. us. new.

1,316,952; I PatentedSept 23, 1919.

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To all whom it may concern: Be it known that I, -EDWARD HnYooN, a

citizen of the United States, residing at I which the following is a Specification.

Indianapolis, in'the county of Marion and State of Indiana, have invented a new and useful Cross-Arm Support for Poles, of

Itis the object of 'm'yinvention to prov1de a cross-arm support for poles, as for telegraph, telephone, and transmisslon lines,

which will not require any notching of the poles with its consequent weakening and rotproducmg, which can be applied quickly nd easily, and which is-simple and inexpensive tomanufact'ure.

The accompanying drawing illustrates my invention: Figure 1 is a perspective View of cross-arm support embodying my invention, as seen from the pole-side; Fig. 2 is a perspective view of the same cross-arm support as seen frorn the cross-arm side; and 3is a horizontal section through such cross-arm support, showing in dotted lines the associated pole,cross-arrn,an d at taching bolt.

The cross-arm support comprises two overlapping plates 10 and 11, which plates are preferably provided with vertical corrugations 12 on their adjacent faces so as to prevent them from relative slipping when they are clamped in operative position. One of the overlapping plates, in this case the plate 11, is provided with guide lugs 13 which extend through slots 14 in the other plate, here the plate 10; and these guide lugs 13 are preferably headed or peened so as to prevent the two plates from being separated after they have once been put together while still permitting relative sliding of the plates upon each other. Each of the plates 10 and 11 carries at one horizontal end a pair of fingers 15, which are at opposite ends of the respective plates; and these fingers are arranged to extend part way around the associated pole 16, and are provided at their ends with lateral prongs 17 projecting toward the pole so that they may be driven into the pole by hammer blows, as is clear from Fig. 3. On the opposite sides of the plates 10 and 11 from that from which the fingers 15 project such plates are provided at their lower edges with shelves 18, on which the cross-arm 19 may rest. The cross arm bears against the outer face of the plate 11, and also preferably against a short face yet the pole itself is mesa urr a e r ws.

ifie a meters a i- Patented Sent .23 19119- Application filed April 18, 1919.

Serial No. 291,110.

20, preferably horizontally corrugated, on

my improved crossarm support, the partsare all fastened together by the single bolt 21. The cross-arm and is thereby prevented from turning about the bolt 21 as an axis it were set into a notch in the pole, but not notched so that it 1s not weakened and is not as subject to rotting as it would be if it were notched, for when such notches are provided water collects and stands in them and causes rot ting. Thus both the stren th and the life of the pole areincreased. l l

I claim as my invention:

1. A cross-arm support for poles, comprising two overlapping plates vertically corrugated on their adjacent faces and provided with pole-gripping fingers which are brought into engagement with the pole by relative sliding of the two plates, said two plates being provided with slots through which a bolt may be passed to clamp the two plates together between a cross-arm on one side and the pole on the other.

2. A cross-arm support for poles, ing two overlapping plates provided with pole-gripping fingers which are brought into engagement with the pole by relative sliding of the two plates, said two plates being provided with slots through which a bolt may be passed to clamp the two plates together between a cross-arm on one side and the pole on the other.

3. A cross-arm support for poles, comprising two overlapping plates provided with pole-gripping fingers which are brought into engagement with the pole by relative sliding of the two plates, said two plates being provided with slots through which a bolt may be passed to clamp the two lates together between a cross-arm on one side and the pole on the other, said pole-gripping fingers being provided with lateral prongs which may be driven into the pole.

comprisjust as fully as though Copies of this patent may be obtained. for

' 4. Across-arm support for poles, oompris" ing two overlapping plates provided with pole-gripping fingers which are brought into engagement with the ole by relative sliding g two plates being pro-, vided with slots through which a'bolt may of the two plates, sai

be passed to clamp the two plates together between across-arm' on one side and the pole on the other, said plates being provided on faces with shelves pole on the other, and a part projecting, from;

a plateover one ofthe horizontal faces of the crossarm.- 6. A cross-arm support for poles, comprising two overlappingplates provided with pole-gripping fingers which are brought-into engagement with the pole by relative sliding of the two plates, said two plates being providedwith slots through which a bolt may be passed to clamp the two: plates- "together, between a cross-arm, on one side and the pole onthe other,;a plate being provided with a cross-arm-engaging part for 2 r two overlapp plates provided with be passed to clamp preventing turning of about such bolt.

7. A cross-arm support for poles,-comprisplates provided with pole-gripping fingers which are brought into 7 engagement with the pole by relative sliding said two plates being proof'the two plates, vided with slots throughiwhich a 'bolt may be passed to clamp the two plates'together between a cross-arm'on one side and the pole onthe other, videdwith guide lugs whichproject into guide slots in the other; said guide lugs being headed to prevent-separation of the two plates. i

one of said plates being pro:

8. A cross-arm support for poles ,eompris-i:

ing two overlapping plates provided with pole-gripping fingers which are brought into engagement with the poleby relative sliding of the two plates,- said twoplates being provided with slots througliwhicha bolt may between "across-arm on ,one side and the the two plates together pole onthe other, one of said plates being provided with guide lugs' whioh-proj'ect into guideslots'in the other;

In witness-whereof Ihave-her'eunto set my hand at Indianapolis, Indiana, thissixteenth dayo'f April, A. -D., hundred and nineteen.

one thousand nine EDW' DHEYDON.

five cents each, by addressing the Commissioner of Patents, Washington, I); O. r V 

